Power driven razor hair cutting and shaping apparatus



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United States Patent 3,363,317 POWER DRIVEN RAZOR HAIR CUTTING ANDSHAPING APPARATUS Norman Cassella, 477 Riverside Ave., Rutherford, NJ.07070 Filed Dec. 20, 1966, Ser. No. 603,243 6 Claims. (Cl. 30272) Myinvention relates to a power driven razor hair cutting device or powerdriven shaper utilizing a razor type blade assembly providing a slicingaction.

The increasing popularity of mens hair styling has created a whole newfield of specialized techniques in the cutting of mens hair. Razorcutting is one of these techniques.

At the present time the technique used is to razor cut the hairmanually, using a conventional barbers straight razor. The mostsuccessful method is to use a slicing stroke with the razor whileholding the hair with a comb.

Most hair stylists have some form of electric motor driven units todrive a variety of clipper blades. It would therefore be most desirableto provide a mechanism readily attachable to and fit this type of driveunit. Such units drive the cutting mechanism from side to side cuttingthe hair between a plurality of cooperating teeth.

In accordance with my invention, I provide a frame, one end of which isformed to be removably attached to a conventional electric power drivenclipper drive unit. The frame has ways or slots for slidably receivingthe support ing extensions of the carriage which in turn receives areplaceable razor blade assembly. The carriage is connected by means ofa connecting link to an oscillating bell crank mounted on the frame andoperatively linked with the driving unit when the cutting mechanism isattached to the drive unit. A comb member is detachably secured to oneside of the frame and is designed so that the blade rides tightlyagainst the comb. A cover is detachably secured to the other side of theframe. The blade may be quickly replaced by removing the comb. In amodification I dispense with the carriage and drive the blade assemblydirectly from the bell crank and link. The driving unit could be made anintegral part of the whole assembly.

Referring to the drawings:

FIGURE 1 is a top or plan view of a device or mechanism made accordingto my invention;

FIGURE 2 is a view of FIGURE 1 with the cover, comb and the bladeremoved;

FIGURE 3 is a side view of FIGURE 1;

FIGURE 4 is a bottom view of FIGURE 1;

FIGURE 5 is a bottom view of FIGURE 1 with the comb removed;

FIGURE 6 is a partial view of the frame showing the details of theattaching structure;

FIGURE 7 is a section taken along the line 77 of FIGURE 1;

FIGURE 8 is an enlarged section taken along the line 88 of FIGURE 1;

FIGURE 9 shows the mechanism partially disassembled and laid out;

FIGURE 10 shows details of the carriage and blade;

FIGURE 11 is a top or plan view of a modification of the device shown inFIGURE 1;

FIGURE 12 is a view similar to FIGURE 11 with the cover removed;

FIGURE 13 is a side view of FIGURE 11;

FIGURE 14- is a bottom view of FIGURE 11;

FIGURE 15 is similar to FIGURE 14 but with the comb removed;

FIGURE 16 shows the blade used; and

FIGURE 17 is a section taken along the line 17-17 of FIGURE 11.

Referring to FIGURES 1 to 5 and FIGURE 9, a hair 3,363,317 Patented Jan.16, 1958 "ice cutting apparatus made according to my invention includesa frame 20, having a portion 21 formed to be attached at a proper angleto a conventional power operated clipper driving mechanism, the member22 providing the engaging structure. The frame 20 is provided with thegrooved ways 23 and 24.

A reciprocating carriage Z5 is provided with extensions or arms 25 and27 slidably received within the ways 23 and 24 for supporting thecarriage 25 in the frame 20. The carriage is also provided with an armor extension 28 which is connected by a link 29 pivotally connected toextension 28 and the bell crank 30 pivotally mounted at 30' on frame 20.The bell crank 30 is provided with ears or extensions 31 and 32 whichare engaged by the vibrating arm or armature (not shown) on the driveunit when the apparatus or mechanism is mounted on the drive unit. Inoperation the carriage reciprocates longitudinally of the frame.

The carriage is provided with a recess 33 (FIGURES 8 and 10) whichsnugly receives and retains the conventional disposable blade 34 havingthe head 35 which fits into recess 33.

When attached to the electrically driven power unit, the bell crank 30is oscillated about its pivot 30. This action is transmitted throughlink 29 to carriage 25 to cause a rapid reciprocating action of thecarriage 25 and blade 34 to cause a slicing action.

Removably secured to frame 20 is the comb 36, having a recess 37 forreceiving the head 35 of the blade. The relationship of the blade andcomb is such that there is a very tight sliding contact between theblade and comb. I have found that this is necessary to prevent hair fromaccumulating between the blade and comb which accumulation I have foundto interfere with proper cutting. The length of the teeth of the combalso must not be too long since long teeth permit only small amounts ofhair to be cut. The blade 25 can be easily replaced by removing the comb36.

A cover 38 is secured to the other side of the frame holding thecarriage in place on the frame.

In a modification of my invention shown in FIGURES 11 to 17, inclusive,I am able to dispense with the carriage and the cover and still use aconventional razor blade.

The frame 40 is provided with the slots or ways 41 and 42 which slidablyreceive the head or backing 43 of the blade 44. The blade is providedwith a link hole or aperture 45, into which is pivotally fitted one endof the link 46, the other end of the link 46, being pivotally receivedin the bell crank 47 having arms 48, 49 which engage the operatingvibrating tongue of the driving unit.

A comb 50 is detachably secured to frame 40.

In this modification the blade 44 is reciprocated in the same manner asdescribed for the embodiment shown in FIGURES l to 10, inclusive.

What is claimed is:

1. A power driven razor hair cutter comprising (a) an elongated U-shapedframe having slot structure therein and having a head portion forattachment to a power driven unit,

(b) a detachable comb member secured to said frame and having a slotstructure registering with the slot structure in said frame,

(c) a blade assembly having a portion slidably mounted in said slotstructures,

(d) a bell crank pivotally mounted at one end of said frame and havingmeans for co-acting with a power driven unit,

(e) and link means connecting said blade assembly and said bell crankwhereby when said bell crank is escillated said blade assembly will bereciprocated across said comb.

2. A power driven razor hair cutter comprising (a) an elongated U-shapedframe having slots in the legs thereof and having a head portion forattachment to a power driven unit,

(b) a detachable comb member secured to said frame and having a slotstructure registering with the slots in said frame,

(c) a carriage slidably mounted on said frame and hav- .ing extensionsreceived within said slots and said slot structure,

(d) a blade assembly mounted in said carriage,

(e) a bell crank pivotally mounted at one end of said frame and havingmeans for co-acting with a power driven unit,

(f) and link means connecting said carriage and said bell crank wherebywhen said bell crank is oscillated by said power driven unit saidcarriage and blade assembly will be reciprocated.

3. A power driven razor hair cutter comprising (a) an elongated U-shapedframe having slots in the legs thereof and having a head portion forattachment to a power driven unit,

(b) a detachable Comb member secured to said frame and having a slotstructure registering with the slots in said frame,

(c) a carriage having extensions received within said slots and slotstructure,

(d) a blade mounted on said carriage,

(e) a bell crank pivotally mounted at one end of said frame and havingmeans for co-acting with a power driven unit, I

(f) link means connecting said carriage and said bell crank whereby whensaid bell crank is caused to oscillate said carriage and blade will bereciprocated,

'(g) and said blade being in slidable contact with said comb.

4. A power driven razor hair cutter comprising (a) an elongated U-shapedframe having slots in the legs thereof and having a head portion forattachment to a power driven unit,

(b) a detachable comb member secured to said frame and having a slotstructure registering with the slots in said frame,

() a blade assembly slidably mounted in said slots and slot structure,

((1) a bell crank pivotally mounted at one end of said frame and havingmeans for co-acting with a power driven unit,

(e) and link means connecting said blade assembly and said bell crankwhereby when said bell crank is oscillated said blade assembly will bereciprocated, said blade assembly having a close slidable contact withsaid comb member, said comb member retaining said blade assembly in saidframe.

5. A power driven razor hair cutter comprising (a) an elongated U-shapedframe having slots in the legs thereof and having a head portion forattachment to a power driven unit,

(b) a detachable comb member secured to said frame and having a slotstructure registering with the slots in said frame,

(c) a carriage slidably mounted on said frame and having extensionsreceived within said slots,

(d) a blade assembly mounted in said carriage,

(e) a bell crank pivotally mounted at one end of said frame and havingmeans for co-acting with a power driven unit,

(f) and link means connecting said carriage and said bell crank wherebywhen said bell crank is oscillated said carriage and blade assembly willbe reciprocated, said blade assembly having a close slidable contactwith said comb member, said comb member retaining said blade assembly insaid carriage and permitting ready replacement of said blade when saidcomb member is removed.

6. A power driven razor hair cutter comprising (a) an elongated U-shapedframe having slots in the legs thereof and having a head portion forattachment to a power driven unit,

(b) a detachable comb member secured to said frame and having a slotstructure registering with the slots in said frame,

(c) a blade assembly slidably mounted in said slots and slot structure,

(d) a bell crank pivotally mounted at one end of said frame and havingmeans for co-acting with a power driven unit,

(e) and link means connecting said blade assembly and said bell crankwhereby when said bell crank is oscillated said blade assembly will bereciprocated, said blade assembly having a close slidable contact withsaid comb member, said comb member retaining said blade assembly in saidframe and permitting ready replacement of said blade when said combmember is removed.

References Cited UNITED STATES PATENTS 1,716,387 6/1929 Shaler 30-272 X2,650,421 9/1953 Wietzer 3040 1,481,168 1/1924 Wilson arr-272 x JAMES L.JONES, JR., Primary Examiner.

1. A POWER DRIVEN RAZOR HAIR CUTTER COMPRISING (A) AN ELONGATED U-SHAPEDFRAME HAVING SLOT STRUCTURE THEREIN AND HAVING A HEAD PORTION FORATTACHMENT TO A POWER DRIVEN UNIT. (B) A DETACHABLE COMB MEMBER SECUREDTO SAID FRAME AND HAVING A SLOT STRUCTURE REGISTERING WITH THE SLOTSTRUCTURE IN SAID FRAME, (C) A BLADE ASSEMBLE HAVING A PORTION SLIDABLYMOUNTED IN SAID SLOT STRUCTURES, (D) A BELL CRANK PIVOTALLY MOUNTED ATONE END OF SAID FRAME AND HAVING MEANS FOR CO-ACTING WITH A POWER DRIVENUNIT, (E) AND LINK MEANS CONNECTING SAID BLADE ASSEMBLY AND SAID BELLCRANK WHEREBY WHEN SAID BELL CRANK IS OSCILLATED SAID BLADE ASSEMBLYWILL BE RECIPROCATED ACROSS SAID COMB.